Clark v. Sweeney
The Supreme Court unanimously reversed a ruling that had ordered a new murder trial for a Maryland man, holding that the Fourth Circuit invented its own legal theory to reach that result — one the man himself had never argued and the State never had a chance to rebut.
The decision reaffirms a fundamental rule of American courts: judges decide what the parties put before them, not what the judges might prefer to decide.
How it got here: Maryland state courts denied post-conviction relief; a federal district court denied habeas relief; the Fourth Circuit reversed and ordered a new trial; the State petitioned the Supreme Court, which agreed to hear the case.
The Case in Depth
What happened
A Maryland jury convicted Jeremiah Sweeney of second-degree murder after a night when he opened fire during an argument, killing a bystander. During deliberations, one juror secretly visited the crime scene and reported it to the court; the parties agreed to remove that juror and proceed with eleven. Sweeney's trial lawyer did not ask to question the rest of the jury to see whether that juror's visit had influenced anyone else, and Sweeney later argued that failure amounted to ineffective legal representation.
The question before the Court
Can a federal appeals court grant a convicted person a new trial based on a legal claim he never actually raised in his case?
The Court's answer
No — a federal appeals court cannot grant a prisoner a new trial based on legal claims the prisoner himself never raised. The Court ruled that the Fourth Circuit violated the fundamental rule that courts decide what the parties put before them, and nothing more. By sweeping past Sweeney's single ineffective-assistance claim and constructing its own theory of pervasive constitutional failures at trial, the Fourth Circuit deprived the State of any opportunity to respond to those theories and acted far beyond its proper role as a neutral arbiter.
The decision does not end Sweeney's case. The Fourth Circuit must now take up the claim he actually raised — whether his trial lawyer should have questioned the remaining jurors after one secretly visited the crime scene — and must do so under a demanding standard that makes it very hard for federal courts to second-guess state-court rulings on such claims.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Prisoners seeking to challenge their convictions in federal court — and prosecutors defending those convictions — can rely on courts to rule only on the claims actually presented. Courts cannot spring new theories on the parties without warning. The case goes back to the Fourth Circuit to address the specific legal argument the prisoner originally raised.
What changes now
The case returns to the Fourth Circuit, which must now analyze the claim Sweeney actually raised: whether his trial lawyer was ineffective for not questioning the remaining jurors after one juror's unauthorized visit to the crime scene. That analysis must apply the stringent doubly deferential standard under federal habeas law. Unless the Fourth Circuit finds the state court's ruling was clearly unreasonable under that standard, Sweeney's conviction will stand.
What this does not decide
The Court does not decide whether Sweeney's trial lawyer was actually ineffective, or whether Sweeney is entitled to a new trial on the claim he did raise. That question goes back to the Fourth Circuit to resolve under the proper standard.
How the Court got there
The legal reasoning, step by step
- American courts operate under the 'party presentation' principle: the parties frame the issues, and the court acts as a neutral decision-maker on those issues — it does not invent claims on its own. The Court has described this as judges 'calling balls and strikes' without getting a turn at bat.
- Sweeney raised one and only one claim in his federal habeas petition: that his trial lawyer was ineffective under the standard set in Strickland v. Washington (the 1984 ruling that requires lawyers to provide reasonably competent representation) for not questioning the full jury after a juror's unauthorized crime-scene visit.
- Rather than ruling on that ineffective-assistance claim, the Fourth Circuit devised an entirely different theory — a sweeping finding of a 'combination of extraordinary failures from juror to judge to attorney' that, in the court's view, violated Sweeney's right to confront witnesses and his right to an impartial jury. Neither Sweeney nor the State had briefed or argued these theories.
- By granting relief on claims that were never presented, the Fourth Circuit denied the State any opportunity to respond and went far beyond what an appellate court is permitted to do. The Court treated this 'radical transformation' of the case as an abuse of discretion under its earlier ruling in United States v. Sineneng-Smith.
- On remand, the Fourth Circuit must address Sweeney's actual ineffective-assistance claim under a 'doubly deferential' standard: federal courts can grant habeas relief only if every fair-minded judge would agree that every reasonable defense lawyer would have done something different — a high bar that stacks the strong presumption favoring state-court rulings on top of the already-high Strickland standard.
Doctrinal impact
Cases affected by this decision
Reaffirms United States v. Sineneng-Smith (590 U. S. 371)
Reaffirmed as the controlling rule against federal courts deciding claims that parties never raised.